On the Grassmann space representing the lines of an affine space
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In 1982, Bichara and Mazzocca characterized the Grassmann space Gr(1,A) of the lines of an affine space A of dimension at least 3 over a skew-field K by means of the intersection properties of the three disjoint families @S"1,@S"2 and T of maximal singular subspaces of Gr(1,A). In this paper, we deal with the characterization of Gr(1,A) using only the family @[email protected]"[email protected][email protected]"2 of maximal singular subspaces.
[1] Domenico Olanda,et al. A Characteristic Property of the Grassmann Manifold Representing the Lines of a Projective Space , 1984, Eur. J. Comb..
[2] Giuseppe Tallini. Finite Geometries and Designs: On a characterization of the Grassmann manifold representing the lines in a projective space , 1981 .